<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>404 Error Example</title>
		<style>@import url('https://fonts.googleapis.com/css?family=Montserrat:400,600,700');
@import url('https://fonts.googleapis.com/css?family=Catamaran:400,800');
.error-container {
  text-align: center;
  font-size: 106px;
  font-family: 'Catamaran', sans-serif;
  font-weight: 800;
  margin: 70px 15px;
}
.error-container > span {
  display: inline-block;
  position: relative;
}
.error-container > span.four {
  width: 136px;
  height: 43px;
  border-radius: 999px;
  background:
    linear-gradient(140deg, rgba(0, 0, 0, 0.1) 0%, rgba(0, 0, 0, 0.07) 43%, transparent 44%, transparent 100%),
    linear-gradient(105deg, transparent 0%, transparent 40%, rgba(0, 0, 0, 0.06) 41%, rgba(0, 0, 0, 0.07) 76%, transparent 77%, transparent 100%),
    linear-gradient(to right, #d89ca4, #e27b7e);
}
.error-container > span.four:before,
.error-container > span.four:after {
  content: '';
  display: block;
  position: absolute;
  border-radius: 999px;
}
.error-container > span.four:before {
  width: 43px;
  height: 156px;
  left: 60px;
  bottom: -43px;
  background:
    linear-gradient(128deg, rgba(0, 0, 0, 0.1) 0%, rgba(0, 0, 0, 0.07) 40%, transparent 41%, transparent 100%),
    linear-gradient(116deg, rgba(0, 0, 0, 0.1) 0%, rgba(0, 0, 0, 0.07) 50%, transparent 51%, transparent 100%),
    linear-gradient(to top, #99749D, #B895AB, #CC9AA6, #D7969E, #E0787F);
}
.error-container > span.four:after {
  width: 137px;
  height: 43px;
  transform: rotate(-49.5deg);
  left: -18px;
  bottom: 36px;
  background: linear-gradient(to right, #99749D, #B895AB, #CC9AA6, #D7969E, #E0787F);
}

.error-container > span.zero {
  vertical-align: text-top;
  width: 156px;
  height: 156px;
  border-radius: 999px;
  background: linear-gradient(-45deg, transparent 0%, rgba(0, 0, 0, 0.06) 50%,  transparent 51%, transparent 100%),
    linear-gradient(to top right, #99749D, #99749D, #B895AB, #CC9AA6, #D7969E, #ED8687, #ED8687);
  overflow: hidden;
  animation: bgshadow 5s infinite;
}
.error-container > span.zero:before {
  content: '';
  display: block;
  position: absolute;
  transform: rotate(45deg);
  width: 90px;
  height: 90px;
  background-color: transparent;
  left: 0px;
  bottom: 0px;
  background:
    linear-gradient(95deg, transparent 0%, transparent 8%, rgba(0, 0, 0, 0.07) 9%, transparent 50%, transparent 100%),
    linear-gradient(85deg, transparent 0%, transparent 19%, rgba(0, 0, 0, 0.05) 20%, rgba(0, 0, 0, 0.07) 91%, transparent 92%, transparent 100%);
}
.error-container > span.zero:after {
  content: '';
  display: block;
  position: absolute;
  border-radius: 999px;
  width: 70px;
  height: 70px;
  left: 43px;
  bottom: 43px;
  background: #FDFAF5;
  box-shadow: -2px 2px 2px 0px rgba(0, 0, 0, 0.1);
}

.screen-reader-text {
    position: absolute;
    top: -9999em;
    left: -9999em;
}
    
@keyframes bgshadow {
  0% {
    box-shadow: inset -160px 160px 0px 5px rgba(0, 0, 0, 0.4);
  }
  45% {
    box-shadow: inset 0px 0px 0px 0px rgba(0, 0, 0, 0.1);
  }
  55% {
    box-shadow: inset 0px 0px 0px 0px rgba(0, 0, 0, 0.1);
  }
  100% {
    box-shadow: inset 160px -160px 0px 5px rgba(0, 0, 0, 0.4);
  }
}

/* demo stuff */
* {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
body {
  background-color: #FDFAF5;
  margin-bottom: 50px;
}
html, button, input, select, textarea {
    font-family: 'Montserrat', Helvetica, sans-serif;
    color: #bbb;
}
h1 {
  text-align: center;
  margin: 30px 15px;
}
.zoom-area { 
  max-width: 490px;
  margin: 30px auto 30px;
  font-size: 19px;
  text-align: center;
}
.link-container {
  text-align: center;
}
a.more-link {
  text-transform: uppercase;
  font-size: 13px;
    background-color: #de7e85;
    padding: 10px 15px;
    border-radius: 0;
    color: #fff;
    display: inline-block;
    margin-right: 5px;
    margin-bottom: 5px;
    line-height: 1.5;
    text-decoration: none;
  margin-top: 50px;
  letter-spacing: 1px;
}</style>
	</head>
	<body>
		<h1>404 Error Page #2</h1>
		<p class="zoom-area"><b>CSS</b> animations to make a cool 404 page. </p>
		<section class="error-container">
		  <span class="four"><span class="screen-reader-text">4</span></span>
		  <span class="zero"><span class="screen-reader-text">0</span></span>
		  <span class="four"><span class="screen-reader-text">4</span></span>
		</section>
		<div class="link-container">
		  <a target="_blank" href="https://blog.csdn.net/qq_44273429" class="more-link">Visit the original article</a>
		</div>
	</body>
</html>
